This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Effect of Ventilation and Lubricants on Sludge Formation in Passenger Car Gasoline Engines
Annotation ability available
Sector:
Language:
English
Abstract
A bench test has been developed for the estimation of sludge formation. The bench test results along with engine test data reveal the following Conclusions. (1) The largest sludge formation occurs under the combination of low oil temperature/low engine speed and high oil temperature/moderate engine speed. (2) Sludge formation is greatly influenced by the ventilation in the rocker chambers and crankcase. (3) In addition to improvement in the ventilation system the use of phenol-type antioxidants, salicylate-type detergents and dispersant-type viscosity improvers was effective for sludge protection.
Recommended Content
Authors
Topic
Citation
Nakamura, K., Matsumoto, E., Kurosaka, S., and Murakami, Y., "Effect of Ventilation and Lubricants on Sludge Formation in Passenger Car Gasoline Engines," SAE Technical Paper 881577, 1988, https://doi.org/10.4271/881577.Also In
References
- Anderson D.J. “Deposit formation and Wear in Internal Combustion Engines - Recent Progress,” Journal of the Japan Petroleum Society 12-4 1969
- Nahumck W.M. Hyndman C.W. Cryvoff S.A. “Development of the PV-2 Engine Deposit and Wear Test - An ASTM Task Force Progress Report,” SAE Paper No. 872123 SAE International Fuels and Lubricants Meeting and Exposition Toronto, Ontario November 2-5 1987
- Kuroda H. “Gasoline Engines,” Journal of the Society of Automotive Engineers of Japan 41-6 1987 117
- Furuhama S. Kato S. “Components of Crank-case Gas of an Automobile Gasoline Engine,” Journal of the Society of Automotive Engineers of Japan 24-4 1970 347
- Murakami Y. Aihara H. Kuniya J. “Analysis of Mechanism Intermixing Combustion Products in Engine Oil,” Journal of the Japan Society of Mechanical Engineers 53-496B 1987